- UID
- 1390765
- 在线时间
- 小时
- 注册时间
- 2019-3-5
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
Spot the question type: Infer/ Support
Structure of the argument
Background info ( the percentage of beverage containers accounted for total weight of household garbage in usa is steadily decreasing ) Evidence of that info ( Recycling aluminum and glass for the most of weight decline ). Concession of that evidence ( more aluminum be recycled than glass be recycled ), and then the other fact " seems" to be contracted with the infos be offered ( the declined percentage of glass weight is way larger than the declined percentage of aluminum )
Well... we are actually comparing 4 different " percentages "
1. Total percentage of weight reduced
2. The percentage of the reduced weight of aluminum and glass
3.The differences of the percentages of weight reduced between Glass of 1978-1988 and Glass of prior to 1977
4. The differences of the percentages of weight reduced between Aluminum of 1978-1988 and Aluminum of prior to 1977
總下降重量假設為50%, 這50%裡面在假設10為鋁, 40為玻璃, 又告訴你鋁的回收極度高於玻璃的回收, 可是玻璃重量下降比率卻高高的大於鋁。
那只有一個可能性, 在沒有其他回收物的回收比例大於鋁或是大於玻璃的情況下, 玻璃的“使用比率”大大減少, 既然使用率大大減少, 那當然沒那麼多東西可以回收, 就是因為沒那麼多玻璃可以回收, 所以鋁的回收率大於玻璃的回收率, 可是整體的玻璃佔重比率, 當然下降得比鋁來的多 |
|